US9114819B2 - Dolly and frame assembly for the same - Google Patents

Dolly and frame assembly for the same Download PDF

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Publication number
US9114819B2
US9114819B2 US13/807,827 US201013807827A US9114819B2 US 9114819 B2 US9114819 B2 US 9114819B2 US 201013807827 A US201013807827 A US 201013807827A US 9114819 B2 US9114819 B2 US 9114819B2
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US
United States
Prior art keywords
frame
engagement member
dolly
wheels
joints
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US13/807,827
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English (en)
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US20130154218A1 (en
Inventor
Markku Tiilikainen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
K Hartwall Oy AB
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K Hartwall Oy AB
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Publication date
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Assigned to K. HARTWALL OY AB reassignment K. HARTWALL OY AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TIILIKAINEN, MARKKU
Publication of US20130154218A1 publication Critical patent/US20130154218A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/0083Wheeled supports connected to the transported object
    • B62B5/0093Flat dollys without hand moving equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/14Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
    • B62B3/16Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys vertically stackable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38Details or accessories
    • B65D19/40Elements for spacing platforms from supporting surface
    • B65D19/42Arrangements or applications of rollers or wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/006Hand-propelled vehicles or sledges being foldable or dismountable when not in use dismountable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/10Detachable wheels
    • B62B2205/104Detachable wheel units, e.g. together with the wheel shaft

Definitions

  • the present invention relates to transporting goods.
  • the invention relates to dollies, on which divided goods are transported and stored temporarily.
  • Customized dollies typically comprise a platform, which is customized to receive and support a carrier of specific shape, and castors configured to the bottom surface of the platform.
  • Such customized dollies are made of plastic and are used for transporting divided goods, e.g. beverage containers, such as single or multi-packed bottles.
  • the plastic platforms are typically injection molded to provide a form-fitting landscape that is able to conform to the shape of the dividedled goods or carriers thereof.
  • known dollies are not always ideal for use in a typical dynamic environment, in which the conveyable objects can vary depending on the current transportation need and in which the dollies are subjected to wearing use. More specifically, current customized dollies are suitable for a very limited range of different objects and have been proven rather frail.
  • One particular problem with traditional dollies is that the wheels attached to the platform experience rough handling by e.g. forklift forks, whereby the castor flange shears off the platform.
  • the aim is achieved with a novel dolly for transportation of objects, such as single or multi-packed bottles.
  • the dolly according to the invention comprises an engagement member, which is made of formable material and has an engaging side shaped for receiving carriers and a back side opposite to the engaging side.
  • the dolly also comprises load-bearing frame, to which a plurality of wheels are bearing-mounted. There is an abutment between the frame and the engagement member, namely between the frame and the back side of the engagement member, for fastening the engagement member to the frame. Accordingly, a single type of load-bearing frame is applicable a variety of engagement members shaped for a variety of carriers.
  • the present invention also provides a frame assembly for such a dolly.
  • the frame assembly comprises a plurality of interconnectable beams, which are configured to be connected to each other by cribbing joints.
  • the frame assembly comprises two mutually parallel longitudinal beams and at least two mutually parallel transverse beams, which connect the longitudinal beams by cribbing joints forming a rectangular frame, and wheels, which are fixed with screw joints to the joints between the beams of the frame so that the screw joints secure also the engagement member to the frame.
  • the engagement member and the load-bearing frame are separate components of the dolly, it can be customized to cater for the variable need of transporting a range of different objects by simply changing the engagement member. Accordingly, the load-bearing frame can be a universal component that is applicable to a variety different objects that would otherwise require an entirely new dolly.
  • the object receiving and supporting engagement member can be manufactured from a material that is easy to form and that can be made flexible and thus better suited for accommodating the objects.
  • the wheels are attached to the strong frame, whereby the wheels are more robustly fixed to the dolly thus improving its resistance to heavy use.
  • the frame itself can also be constructed from modular components, whereby the dolly can be easily repaired and manufactured with a minimal variety of components.
  • FIG. 1 presents an exploded view of a dolly according to an embodiment
  • FIG. 2 presents an assembled view of the dolly of FIG. 1 ,
  • FIG. 3 presents the engagement member of the dolly of FIG. 1 ,
  • FIG. 4 presents a disassembled frame of the dolly of FIG. 1 .
  • FIG. 5 presents an assembled frame of FIG. 4 .
  • FIG. 6 presents an exploded view of the frame of FIG. 4 with wheels and attachment means
  • FIG. 7 presents an assembled frame of FIG. 6 .
  • FIG. 8 presents a detailed cross-section view of a curved wheel reception well of the engagement member of FIG. 3 .
  • FIG. 9 presents a detailed cross-section view of a chamfered wheel reception well of the engagement member of FIG. 3 .
  • FIG. 10 presents an exploded view of a dolly according to another embodiment of the invention.
  • FIG. 11 presents a partly assembled view of the dolly of FIG. 10 .
  • FIG. 12 presents an assembled view of the dolly of FIG. 10 .
  • FIG. 13 presents a disassembled view of a snap-fit joint between the adaptor and the engagement member of FIGS. 10 to 12 .
  • the dolly 1 comprises a rectangular load-bearing frame 10 .
  • wheels 30 which are standardized wheels found in industrial castor pallets etc.
  • the frame 10 is designed to withstand rough handling and wearing use, whereby the frame 10 is made of material able to provide a robust structure.
  • Such a material would be steel, particularly high-tensile steel, aluminum or even carbon fiber.
  • the material is a trade-off between strength and cost, whereby steel is a particularly suitable material.
  • formability of the material has a minimal importance since the frame 10 is not designed to receive the movable object but designed to bear the load thereof.
  • the frame 10 must therefore be rigid enough to carry the weight of the load packed on the dolly 1 .
  • the wheels 30 usually experience a great share of abuse caused by rough handling, wherein it is advantageous to fix them into the rugged steel frame 10 so that the handling-related strain is not delivered to any fragile plastic parts. Details of the frame 10 are discussed hereafter.
  • the dolly 1 further comprises an engagement member 20 , which can be fixed preferably detachably to the frame 10 .
  • the engagement member 20 is made of easily pourable and formable polymer material, such as polypropylene (PP), polyamide (PA), acrylonitrile butadiene styrene (ABS), high-density polyethylene (HDPE) or similar, whereby the engagement member 20 can be designed to receive a specific shape or shapes of carriers for performing as an customized interface between dolly 1 and the goods.
  • the top surface 21 of the engagement member 20 can also be equipped with grip strips 25 configured to provide high friction between the engagement member 20 and the object loaded thereon.
  • the dolly 1 comprises an abutment between the frame 10 and the engagement member 20 .
  • the engagement member 20 is connected to the frame 10 with a screw joint 17 , 18 , which is formed when the dolly is assembled ( FIG. 2 ).
  • Other joints are also possible and they are discussed hereafter. Accordingly, the abutment can be established in many different ways while form-fitting joints are particularly suitable.
  • the frame 10 is designed as a universal platform for accommodating a variety of engagement members 20 designed to receive a respective variety of different carriers or other objects to be transported.
  • the engagement member 20 shares the rectangular shape with the load-bearing frame 10 .
  • the top surface, on which the goods are loaded, is herein referred to as the engaging side 21 , which is shaped to form a landscape for providing as much support to the cargo as possible.
  • the side opposite to the engaging side 21 is referred to as the back side 22 , which is shaped to engage with the frame 10 , i.e. to form the abutment.
  • the back side 22 of the engagement member 20 is provided with grooves (not shown in detail) for receiving protruding edges of the longitudinal beams 12 of the frame 10 ( FIGS. 1 and 5 ).
  • the engagement member 20 also comprises holes provided into the corners to receive screws 17 and their counterparts 18 for fixing the engagement member 20 into the frame 10 ( FIG. 1 ).
  • the engagement member 20 is further provided with as many drainage holes as possible for draining out accumulating water and impurities.
  • the corners of the engaging side 21 of the engagement member 20 is equipped with recesses for receiving the wheels 30 of a superimposed dolly 1 , whereby a plurality of dollies 1 can be stacked on top of each other.
  • the wheel reception wells 23 are configured to receive the wheel 30 so that the well 23 and the wheel 30 share three contact points. Because the wheels 30 have round outer surfaces, they tend to swing back and forth in an equally round well, when the dolly stack experiences lateral impacts. To overcome the pendulum effect, the wheel 30 is supported from three contact points spread along the circumference thereof, which can be done in a variety of ways.
  • the engagement side 21 has a rounded wheel reception well 23 b , which comprises a flat bottom portion forming the lowest contact point (middle dot) being surrounded by an essentially upright wall and an arch forming the lateral contact points (left and right dot).
  • a rounded wheel reception well 23 b is especially suitable for receiving a steerable wheel 30 .
  • the engagement surface 21 has a chamfered wheel reception well 23 a , which comprises three flat portions, the middle one of which forms the lowest contact point, where as the surrounding tilted walls form lateral contact points.
  • a chamfered wheel reception well 23 a is especially suitable for receiving an aligned wheel 30 .
  • the frame 10 of the dolly 1 is made as a universal chassis to cater for a specific size range of dollies that can be customized for different cargo by changing the engagement member 20 .
  • the frame 10 is an independent modular load-bearing component of the dolly 1 , which in itself can be customized by easily formable polymer engagement members 20 .
  • the components of the frame 10 are also inter-mountable modular parts that have standardized joint interfaces, whereby the parts can manufactured with a minimal set of tools and are interchangeable.
  • the frame 10 can be formed by using simple longitudinal and transverse beams 11 , 12 joined to together by cribbing joints 13 , 14 , 19 according to one embodiment. More precisely the frame 10 comprises two mutually parallel longitudinal beams 12 and four parallel transverse beams 11 .
  • the beams 11 , 12 are hollow profiles having e.g. a rectangular cross-section.
  • the beams have a closed profile are of inexpensive and strong material such as cold formed steel. Other shapes and materials are also applicable.
  • the longitudinal beams 12 have been provided with slits 19 and apertures 13 that are dimensioned to conform to the cross-section of the transversal beams 11 .
  • the transversal beams 11 are provided with cribbing cavities 14 for forming a joint with the apertures 13 of the longitudinal beams 12 .
  • the frame 10 is therefore assembled by forming cribbing joints, in which the slits 19 and apertures 13 of the longitudinal beams 12 are respectively connected with the cribbing cavities 14 of the transverse beams 11 , wherein a rectangular frame 10 comprises two single-beam sides 12 and two double-beam sides 11 perpendicular to the single-beam sides 12 ( FIG. 5 ).
  • the transverse beams 11 are provided with vertical through holes adapted on either side to the portion for accommodating the longitudinal beam 12 .
  • wheels 30 are attached to the frame 10 by inserting screws 15 through said holes, which screws 15 are secured with nuts 16 provided on the other side of the wheel flange.
  • the screw joints 15 , 16 also secure the beams 11 , 12 to each other, whereby the frame 10 can be assembled with very few attachment members. Because the frame 10 is assembled with detachable attachment means, it can be easily disassembled, whereby damaged parts, i.e. failed wheels 30 or bent beams, may be replaced.
  • the frame is assembled with only three screws 15 in each corner of the frame 10 while each corner is provided with four receptive holes. The one remaining hole is used for attaching other parts of the dolly 1 to the frame 10 .
  • the beams 11 , 12 and cribbing joint shapes 13 , 14 , 19 are dimensioned so that a small ridge or rail is formed on top of the longitudinal beam 12 for forming a form-fitting shape to engage with other parts 20 assembled on top of the frame 10 .
  • the frame 10 can be constructed with a deviating manner.
  • the beams 11 , 12 may be connected by other connecting means, such as welding or screw joint.
  • the frame 10 can be cast. Overall, it is particularly suitable to favor constructions that can be easily disassembled.
  • the frame 10 comprises only one longitudinal beam 12 that is provided to the center of the frame 10 .
  • To each end of the central longitudinal beam 12 has been fixed at least one transverse beam 11 with cribbing joints as described above.
  • the shape of the frame 10 resembles the letter H, wherein the wheels 30 are attached to the terminal ends of the vertical branches of the letter H, i.e. the transverse beams 11 .
  • Such a construction would be especially suitable for light applications, such as a dolly designed for transporting plants etc.
  • the dolly 1 comprises an adaptor 40 , which connects the engagement member 20 to the frame 10 ( FIG. 10 ).
  • the adaptor 40 is an interface that is fixed to the frame 10 by, e.g., a similar screw connection as illustrated in FIG. 1 .
  • the adaptor 40 shares its shape with that of the frame 10 , e.g. rectangle, and is injection molded of polypropylene (PP), polyamide (PA), acrylonitrile butadiene styrene (ABS), high-density polyethylene (HDPE) or similar.
  • the lower surface of the adaptor 40 is provided with shapes designed to intermesh with corresponding shapes of the frame 10 , such as the small ridge or rail on top of the longitudinal beam 12 .
  • the ridge is also designed to form a form-fitting shape to engage with the back side 22 of engagement member 20 of the first aspect of the invention.
  • the upper surface of the adaptor 40 is on the other hand configured to form an easily established connection to the engagement member 20 , more specifically its back side 22 .
  • the adaptor 40 is fixed detachably to the frame 10 upon assembly thereof and an engagement member 20 suitable for the current transportation object is snapped onto the adaptor 40 with a form-fitting joint ( FIG. 12 ).
  • the snap-fit connection between the frame 10 and engagement member 20 via adaptor 40 of the second aspect requires no tools and may be performed faster.
  • such a snap-fit joint is provided by equipping the back side 22 of the engaging member 20 with a circular joint sleeve 24 comprising a plurality of elastically bendable lugs arranged on the periphery.
  • the receiving adaptor 40 is provided with corresponding cylindrical receptacles 41 .
  • the joint member 24 of the of the engagement member 20 and the receptacles 41 may have another cross-section shape, such as a rectangle, hexagonal etc.
  • carrier-specific engagement member 20 can be changeably snapped onto a modular and standardized dolly chassis assembly formed by the wheels 30 , frame 10 and adaptor 40 .
  • the engagement member 20 may be shaped so as to provide lateral support for the objects to be carried. Instead of or in addition to a grip strip 25 of FIG. 3 .
  • the engagement member 20 has been designed to have a landscape providing recesses specifically shaped to receive and support a certain object, such as the bottom of a multipack-bottle carrier.
  • the engagement member 20 is made of formable material, it can be injection molded to conform to the current transportation need. Accordingly, no changes are necessary for the frame 10 , which can be used as a modular load-bearing component.
  • the engagement member 20 may be manufactured from a relatively soft material, which can deform elastically to form receive the object tightly while the frame 10 is configured to bear the weight of the objects on the engagement member 20 and to provide support to the engagement member 20 . If is desirable to use a very flexible material for the engagement member 20 , it may be beneficial to provide the frame 10 with additional supporting longitudinal beams 12 between the terminal outlining beams 12 .
  • an adaptor 40 according to the second aspect of the invention ( FIGS. 10 to 13 ) can be used to support the engagement member 20 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Handcart (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US13/807,827 2010-07-02 2010-07-02 Dolly and frame assembly for the same Expired - Fee Related US9114819B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FI2010/050574 WO2012001217A1 (en) 2010-07-02 2010-07-02 Dolly and frame assembly for the same

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US20130154218A1 US20130154218A1 (en) 2013-06-20
US9114819B2 true US9114819B2 (en) 2015-08-25

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US (1) US9114819B2 (ru)
EP (1) EP2588360B1 (ru)
JP (1) JP2013530088A (ru)
AU (1) AU2010356588B2 (ru)
BR (1) BR112013000093A2 (ru)
RU (1) RU2542796C2 (ru)
WO (1) WO2012001217A1 (ru)
ZA (1) ZA201300008B (ru)

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US10246115B2 (en) * 2013-09-18 2019-04-02 Allpillars, Inc. Food, water and vital supplies storage and transport cart
US10780906B2 (en) * 2016-01-28 2020-09-22 Chep Technology Pty Limited Dolly for transporting products
US20210345516A1 (en) * 2020-05-04 2021-11-04 Panduit Corp. Data center cabinet and reusable transport casters for a data center cabinet
USD949869S1 (en) * 2020-01-08 2022-04-26 Ktl Iniernational, Co., Ltd. Carriage

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US8851488B2 (en) 2012-06-15 2014-10-07 Iscar Gse Corp. Modular cargo dolly
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RU2609490C1 (ru) * 2015-07-14 2017-02-02 Игнат Игоревич Иванов Тележка
US11267119B2 (en) 2015-12-14 2022-03-08 Milwaukee Electric Tool Corporation Storage device system
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US10494141B2 (en) 2017-08-16 2019-12-03 Chep Technology Pty Limited Reconfigurable pallet/dolly platform
GB201718954D0 (en) * 2017-11-16 2018-01-03 Chep Technology Pty Ltd Support Module
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JP1608788S (ru) * 2018-02-02 2018-07-09
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US10286943B1 (en) * 2018-04-26 2019-05-14 Marlin Steel Wire Products LLC Material handling device
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USD898320S1 (en) * 2019-02-26 2020-10-06 Keter Plastic Ltd. Dolly
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USD923935S1 (en) 2019-05-31 2021-07-06 Keter Plastic Ltd. Toolbox
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Cited By (9)

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US20150076799A1 (en) * 2013-09-18 2015-03-19 Gregory Joseph Ryan Collapsible reusable carrying cases
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US20210345516A1 (en) * 2020-05-04 2021-11-04 Panduit Corp. Data center cabinet and reusable transport casters for a data center cabinet
US11622469B2 (en) * 2020-05-04 2023-04-04 Panduit Corp. Data center cabinet and reusable transport casters for a data center cabinet
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US11910559B2 (en) * 2020-05-04 2024-02-20 Panduit Corp. Data center cabinet and reusable transport casters for a data center cabinet

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JP2013530088A (ja) 2013-07-25
EP2588360C0 (en) 2024-07-17
EP2588360B1 (en) 2024-07-17
WO2012001217A1 (en) 2012-01-05
US20130154218A1 (en) 2013-06-20
EP2588360A4 (en) 2017-07-12
AU2010356588B2 (en) 2014-07-03
ZA201300008B (en) 2013-08-28
AU2010356588A1 (en) 2013-01-24
RU2542796C2 (ru) 2015-02-27
BR112013000093A2 (pt) 2017-07-25
EP2588360A1 (en) 2013-05-08
RU2012155512A (ru) 2014-08-10

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